1. The US will stay on the superpower stage till the rest of the world is resistant with the US and the mega states like China, Russia, India and EU follow the strategy ‘to hide’.
2. Either Russia or India or EU.
3. The well established US hegemony or uni polar world and other countries may be next in the wings.
4. China is a mega-state who can stand at par US hegemony if it accommodates its full potential for the same.